Stretch marks

Introduction Stretch marks are a kind of cord-like scar skin damage that occurs in pregnant women's abdomen after birth. It is mainly caused by hormones during pregnancy. The swelling of the abdomen causes the elastic fibers and collagen fibers of the skin to be pulled by external forces to varying degrees. Injury or rupture, often dark red or purple in the early stage. After stabilization, the stretch marks show a white or light white skin damage, which makes the original very beautiful abdomen show a pine bark appearance, which greatly affects the appearance of the abdomen. .

Cause

Due to changes in secretion during pregnancy, the intradermal elasticity (fiber) is weakened, the fragility is increased, and the subcutaneous capillaries and vein walls are thinned and expanded. After 5 months of gestation, the uterus is increasing, and the breast grows due to the development of breast tissue and the deposition of adipose tissue, resulting in thinning of the skin of the breast, abdomen and upper thighs, breaking of the elastic fibers, and revealing the color of the subcutaneous blood vessels. Form stretch marks.

an examination

Related inspection

Skin elasticity check skin color

Stretch marks are a kind of shrinkage lines, which are skin fiber breaks caused by the body during pregnancy, fitness, and weight gain. They are red, white or purple stripes. It also includes obesity lines, sports cracks, body parts with a large range of motion, in addition to the abdomen, as well as the inner and outer sides, knees, buttocks, lumbosacral and other parts.

Differential diagnosis

1. Early: The elastic fibers of the dermis layer are broken and become scarce. The collagen fibers are separated and homogenized, the blood vessel wall is thickened, the lumen is dilated, and there is edema around the blood vessels and mild infiltration of lymphocytes.

2. Late stage: the epidermis shrinks and becomes thinner, the spinous cell layer shrinks, and the epidermis tends to flatten. The dermis is thinned, and the shallow layer of the dermis has a straight and thin collagen bundle arranged in parallel with the surface of the skin. The nucleus is scarce, and the hair follicles, sweat glands, and sebaceous glands also shrink.

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